Chapter 29.2, Problem 38SSC

To determine

To check whether it is possible to replace an $npn$ - battery transistor with two separate diodes those are connected by their $p$ - terminals.

Answer to Problem 38SSC

The $npn$ -transistor cannot replace with two separate diodes that are connected by their $p$ -terminals.

Explanation of Solution

Introduction:

The $npn$ - transistor provide less obstruction to the flow of current as compare to the two separate diodes that are connected by their $p$ - terminals.

The $npn$ -transistor cannot be replaced with two separate diodes because electron requires thin region or passage to pass as it provides low resistance. While two separate in the circuit offer a thick region that provides high resistance to the electron. So, that electron will not pass through the region.

Conclusion:

The $npn$ -transistor cannot replace with two separate diodes that are connected by their $p$ -terminals.